“I installed a set of double wide shutters using the 2.5" screws into a brick exterior. 1/4" and/or 5/16" drill bits are WAY too large. Installation instructions on Ext Solutions stated to use those sizes. TOO big. I used MOLY's and the concrete drill bit that went along with those. On the double wide shutters I used 9 metal screws per shutter. I am a licensed Contractor.
Exterior Solutions needs to edit installation instructions for the METAL screws.”
